Castable Polyurethane Elastomers: 2nd Edition (Paperback) book cover

Castable Polyurethane Elastomers

2nd Edition

By I.R. Clemitson

CRC Press

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Description

Castable Polyurethane Elastomers is a practical guide to the production of castable polyurethane articles, from simple doorstops to complex items used in the military and nuclear industries. The book shows the progression from raw materials to prepolymer production, including the chemistry and functionality of the production processes. It provides a comprehensive look at various problem-solving and processing techniques, examining the selection of different types of systems on both the micro and macro levels. It also discusses curing and post-curing operations, conveying the importance of using the correct property for the application.

Reorganized for better flow, this Second Edition:

  • Describes new methods in the processing of castable polyurethanes
  • Expands coverage of health and safety aspects
  • Brings all standards up to date

Castable Polyurethane Elastomers, Second Edition explainsthe production of polyurethane components, filling the gap between pure chemistry and trade information.

Reviews

"Whether you are an experienced technologist or a beginner, this how-to book will serve as your bible. Castable polyurethane elastomers are an important and growing worldwide industry. The extent of the growth is due to constant improvements and innovations in both technology and manufacturing procedures. The reader will benefit from the logical sequence of polyurethane chemistry to the formulation of world-class castable elastomers."

—Michael Szycher, Ph.D, President, Sterling Biomedical, Inc., Lynnfield, Massachusetts, USA

"Written in simple language for hands-on practice. Provides details of processes and also solutions to problems. Safety and health is emphasized throughout the whole book."

—Wei Min Huang, Nanyang Technological University, Singapore

"Whether you are an experienced technologist or a beginner, this how-to book will serve as your bible. … The reader will benefit from the logical sequence of polyurethane chemistry to the formulation of world-class castable elastomers."

FAPU European Polyurethane Journal - July 2015

Table of Contents

Preface

About the Author

Symbols and Acronyms

Introduction to Polyurethanes

Introduction to Polyurethanes

Background

History

Chemistry of Polyurethanes

Introduction

Raw Materials

Prepolymers

Urea and Urethane Reactions

Chain Extension

Degradation

References

Health and Safety

Health and Safety

Introduction

Workplace

Prepolymer Preparation

Engineering

Safety Data Sheet Format

References

Processing

Prepolymer Production

Prepolymers

Laboratory Preparation

Commercial Preparation

One-Shot System

Quasiprepolymers

References

Processing Fundamentals

Introduction

Introduction to Molding Process

Health and Safety Concerns during Casting

Mold Preparation

Batch Size Adjustment

Prepolymer

Pigments and Additives

Curatives

Degassing

Mixing and Casting

Curing and Post Curing

Processing

Molding Methods

Bonding

Finishing

Plasticized Polyurethanes

Epoxy Polyurethane Blends

Cellular Polyurethane Elastomers

Polyurethane Processing Problems

Introduction

Observed Problems with Potential Causes

General Problem Solving

Mold Design

Bond Failure

Properties

Properties

Introduction

Physical Properties

Environmental

Electrical

Radiation

Chemical

Wear

References

Applications

Introduction

Major Type and Grade Selection

Polyurethane's Role in the Materials Field

Polyurethane Selection Criteria

Design

Summary

Tools for Evaluation

Introduction

Verification of Selected Grade

Quality Control Tests

Type Tests

Prototype and Service Tests

Investigative Research

References

Appendices

Abbreviations and Trade Names

Polyurethane Curatives

Mold Release Agents

Calculations

Molecular Weight

Equivalent Weight

Equivalent Weight of Blends of Polyols or Curatives

Weight Calculations

Acid Levels

Isocyanate Calculation

Chemical Structures

Glossary

Index

About the Author

I.R. Clemitson has worked in the chemical industry for 45 years. Predominantly, he worked in the polymer industry, both in production and development, concentrating on rubbers and polyurethanes. In 1999, he received a master’s degree from the University of Technology in Sydney, Australia. His thesis was titled "The Influence of Polyurethane Chemistry on Erosive Wear." During this time, he was working at the R and D laboratory of Warman International in Sydney, Australia doing research into polyurethanes and other elastomers. In the concluding years of his full-time work, he was employed in the development and manufacture of polyurethane elastomers and foams. He also gave lectures at the local training institute and to industry on aspects of polyurethane and rubber technology. He has authored two books on polyurethane elastomers, namely Castable Polyurethane Elastomers and Polyurethane Casting Primer.

Subject Categories

BISAC Subject Codes/Headings:
SCI013060
SCIENCE / Chemistry / Industrial & Technical
TEC021000
TECHNOLOGY & ENGINEERING / Material Science
TEC055000
TECHNOLOGY & ENGINEERING / Textiles & Polymers